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  <title>Document</title>
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<body>


  <script>

    // 目标：通过插值表达式，定义对象的键名
    // 语法： {  [表达式] :  值}
    const obj = {
      ["hello" + "react"]: "hello"
    }

    console.log('obj  ----->  ', obj);
  </script>
</body>

</html>